CN101342434A - Oxide combined silicon carbide ceramic film tube - Google Patents
Oxide combined silicon carbide ceramic film tube Download PDFInfo
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- CN101342434A CN101342434A CNA2008101070491A CN200810107049A CN101342434A CN 101342434 A CN101342434 A CN 101342434A CN A2008101070491 A CNA2008101070491 A CN A2008101070491A CN 200810107049 A CN200810107049 A CN 200810107049A CN 101342434 A CN101342434 A CN 101342434A
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Abstract
The present invention relates to a ceramic film tube made of silicon carbide combined with oxide, which is composed of a film (1), a tube body (2) and a filtering frame (3). The integral materials of the ceramic film tube are processed with binder, surfactant, plasticizer, pore-forming agent and preservative. The fabrication processes of the ceramic film tube include the processing of tubular main body materials, the processing of auxiliary processing materials and filming materials. The weight portions of the tubular main body materials are as follows: 85 to 92 portions of silicon carbide, 6 to 12 portions of fine silicon powder, 0 to 5 portions of kaoline, 0 to 3 portions of powdered alumina and 0 to 5 portions of silica sol; the weight portions of the auxiliary processing materials: 0 to 3 portions of fine metallic silicon powder, 2 to 4 portions of binder, 2 to 4 portions of lubricant, 0 to 0.5 portions of surfactant, 0.5 to 1 portions of plasticizer, 3 to 5 portions of pore-forming agent, 0.1 to 0.5 portions of preservative and water; and the weight portions of the filming materials are as follows: 20 portions of fine Alpha Al2O3 powder, 70 portions of fine Al(OH)3 powder and 10 portions of kaoline. The ceramic film tube has the advantages of porosity larger than 40 percent, press resistance, bending resistance, good thermal stability, large strength, high filtering speed and good filtering effect. The ceramic film tube can be widely used in a filtering basin, a filter and other filtering devices.
Description
Technical field
The present invention relates to a kind of making of oxide combined silicon carbide ceramic film tube, be mainly used among the filter of waste liquid (gas).
Technical background
At present, country pays much attention to environmental protection, especially to the processing of industrial wastes (gas), so the scientific research personnel has carried out many research work with regard to how handling industrial wastes (gas).Carry out filtration treatment as waste liquid being adopted methods such as filtering ponds, filter.But the key of filtration is a screen pipe in filtering ponds, filter.Research people to screen pipe extremely pay close attention to thus.In the recent period, mostly the screen pipe of people's employing is to process with ceramic raw material.As: corundum, aluminium oxide or carborundum etc. though the screen pipe that these raw materials are made can play a role in filtering, because compact structure influences the rate of filtration, do not reach and filter the effect that requires.
Summary of the invention
Purpose of the present invention just provides a kind of ceramic-film tube of oxide combined silicon carbide.
The invention has the advantages that: porosity greater than 40%, resistance to compression bending resistance, Heat stability is good, intensity is big, the rate of filtration is fast, good filtration effect.Can be widely used among filtering ponds, filter and other filter.
Main points of the present invention are: it is divided into the processing of tube-shaped main body raw material in manufacturing process, the processing and the plated film of secondary process raw material processes raw material.The composition by weight that its tube-shaped main body processes raw material is: carborundum 85-92, silicon powder 6-12, kaolin 0-5, alumina powder 0-3, Ludox 0-5, secondary process raw material: metallic silicon micro mist 0-3, binding agent 2-4, lubricant 2-4, surfactant 0-0.5, plasticizer 0.5-1, pore creating material 3--5, anticorrisive agent 0.1-0.5 and water; The raw material of plated film processing is: α Al
2O
3Little--20, Al (OH)
3Micro mist--70, kaolin--10.
The process of tube-shaped main body raw material is:
The first step, according to the different requirements of oxide combined silicon carbide ceramic film tube, component is chosen raw material carborundum, silicon powder, kaolin, Ludox, charcoal, kaolin by weight.
Second step, auxiliary material processing: above raw material is mixed, mix and pinch with going into suitable quantity of water and surfactant and plasticizer again, carry out oldly after mixed the pinching, the raw material after old is processed into tubular blank.The coating raw material process is:
In the 3rd step, according to the different requirements of oxide combined silicon carbide ceramic film tube, component is selected α Al for use by weight
2O
3Little, Al (OH)
3Micro mist, kaolin after the mixing, add hydroxypropyl methylcellulose slurrying, and the proportion of slip is 1.6.
The 4th step plated film, the slurry that the 3rd step was made plates on the tubular blank just oven dry.
Burn till at last: the plated film pipe fitting after will drying is packed into and is fired in the stove, fire the time, by 550-1500 ℃ of temperature rise period progressively temperature raising fire, get final product revising after the oxide combined silicon carbide ceramic film tube cooling of burning till, checking.
The alleged binding agent of the present invention is meant hydroxypropyl methylcellulose or methylcellulose or Lignosite; Lubricant is meant tung oil, stearic acid; Surfactant is oleic acid or colloid ink powder; Plasticizer is meant glycerine; Pore creating material is meant the raw material of the volatilization of can burning under hot conditions, as charcoal, sawdust etc.; Anticorrisive agent is meant stupid sodium formate.
Its technological process of production is:
Description of drawings
Fig. 1 structural representation of the present invention, 1-film among the figure, 2-body, 3-filter frame.
Specific embodiment
Embodiment one:
The first step, component is chosen raw material carborundum by weight--and 90, silicon powder--6, kaolin--2, Ludox--1, corundum powder-1.
Second step, above raw material is mixed, mix and pinch with going into suitable quantity of water and surfactant and plasticizer again, carry out oldly after mixed the pinching, the raw material after old is processed into tubular blank dries.
In the 3rd step, plated film: component is selected α Al for use by weight
2O
3Micro mist-20; Al (OH)
3Micro mist--70; Kaolin powder--after 10 mixing, add hydroxypropyl methylcellulose slurrying afterwards; The slurry that makes is plated on the tubular blank just oven dry.
In the 4th step, burn till: the plated film pipe fitting after will dry is packed into and is fired in the stove, fire the time, by 550-1400 ℃ of temperature rise period progressively temperature raising fire, revise after the oxide combined silicon carbide ceramic film tube that burns till is cooled off, check and get final product.
Embodiment two:
The first step, component is chosen raw material carborundum by weight--and 85, silicon powder--7, kaolin--3, the metallic silicon micro mist--2, charcoal--3.
Second step, above raw material is mixed, mix and pinch with going into suitable quantity of water and surfactant and plasticizer again, carry out oldly after mixed the pinching, the raw material after old is processed into tubular blank dries.
In the 3rd step, plated film: component is selected α Al for use by weight
2O
3Micro mist--2O; Al (OH)
3Micro mist--70; Kaolin powder--after 10 mixing, add hydroxypropyl methylcellulose slurrying afterwards; The slurry that makes is plated on the tubular blank just oven dry.
In the 4th step, burn till: the plated film pipe fitting after will dry is packed into and is fired in the stove, fire the time, by 550-1400 ℃ of temperature rise period progressively temperature raising fire, revise after the oxide combined silicon carbide ceramic film tube that burns till is cooled off, check and get final product.
Claims (2)
1, a kind of oxide combined silicon carbide ceramic film tube, it is by film 1, body 2, form with filter frame 3, its integral body is by binding agent, surfactant, plasticizer, pore creating material, the anticorrisive agent raw material processes, in manufacturing process, be divided into the processing of tube-shaped main body raw material, the processing and the plated film of secondary process raw material process raw material, it is characterized in that the composition by weight that tube-shaped main body processes raw material is: carborundum 85-92, silicon powder 6-12, kaolin 0-5, alumina powder 0-3, Ludox 0-5, secondary process raw material: metallic silicon micro mist 0-3, binding agent 2-4, lubricant 2-4, surfactant 0-0.5, plasticizer 0.5-1, pore creating material 3--5, anticorrisive agent 0.1-0.5 and water; The raw material of plated film processing is: α Al
2O
3Little--20, Al (OH)
3Micro mist--70, kaolin--10.
2, a kind of oxide combined silicon carbide ceramic film tube according to claim 1, binding agent is meant hydroxypropyl methylcellulose or methylcellulose or Lignosite; Lubricant is meant tung oil, stearic acid; Surfactant is oleic acid or colloid ink powder; Plasticizer is meant glycerine; Pore creating material is meant the raw material of the volatilization of can burning under hot conditions, as charcoal, sawdust etc.; Anticorrisive agent is meant stupid sodium formate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101070491A CN101342434A (en) | 2008-09-01 | 2008-09-01 | Oxide combined silicon carbide ceramic film tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101070491A CN101342434A (en) | 2008-09-01 | 2008-09-01 | Oxide combined silicon carbide ceramic film tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101342434A true CN101342434A (en) | 2009-01-14 |
Family
ID=40244623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101070491A Pending CN101342434A (en) | 2008-09-01 | 2008-09-01 | Oxide combined silicon carbide ceramic film tube |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515817A (en) * | 2011-11-16 | 2012-06-27 | 伍协 | Hollow fiber ceramic membrane and preparation method thereof |
| CN103787689A (en) * | 2014-02-25 | 2014-05-14 | 江苏威仕结构陶瓷有限公司 | Preparation method of silicon carbide foamed ceramic |
| CN105130441A (en) * | 2015-07-28 | 2015-12-09 | 江苏久吾高科技股份有限公司 | Silicon carbide ceramic membrane and preparation method thereof |
| CN106365677A (en) * | 2016-08-26 | 2017-02-01 | 宜兴王子制陶有限公司 | Main material for wall-flow type ceramic filter |
| CN107158820A (en) * | 2017-07-09 | 2017-09-15 | 飞潮（无锡）过滤技术有限公司 | A kind of ellipse gas purification chimney filter |
| CN108704492A (en) * | 2018-04-27 | 2018-10-26 | 台州利欧环保新材料有限公司 | A kind of preparation method of porous silicon carbide ceramic membrane |
| CN113019015A (en) * | 2019-12-24 | 2021-06-25 | 东北林业大学 | Cake-shaped wood fiber ceramic engine air filter element |
-
2008
- 2008-09-01 CN CNA2008101070491A patent/CN101342434A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515817A (en) * | 2011-11-16 | 2012-06-27 | 伍协 | Hollow fiber ceramic membrane and preparation method thereof |
| CN103787689A (en) * | 2014-02-25 | 2014-05-14 | 江苏威仕结构陶瓷有限公司 | Preparation method of silicon carbide foamed ceramic |
| CN105130441A (en) * | 2015-07-28 | 2015-12-09 | 江苏久吾高科技股份有限公司 | Silicon carbide ceramic membrane and preparation method thereof |
| CN105130441B (en) * | 2015-07-28 | 2017-12-08 | 江苏久吾高科技股份有限公司 | A kind of silicon carbide ceramic membrane and preparation method thereof |
| CN106365677A (en) * | 2016-08-26 | 2017-02-01 | 宜兴王子制陶有限公司 | Main material for wall-flow type ceramic filter |
| CN107158820A (en) * | 2017-07-09 | 2017-09-15 | 飞潮（无锡）过滤技术有限公司 | A kind of ellipse gas purification chimney filter |
| CN108704492A (en) * | 2018-04-27 | 2018-10-26 | 台州利欧环保新材料有限公司 | A kind of preparation method of porous silicon carbide ceramic membrane |
| CN113019015A (en) * | 2019-12-24 | 2021-06-25 | 东北林业大学 | Cake-shaped wood fiber ceramic engine air filter element |
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Application publication date: 20090114 |